86941618 has 4 divisors (see below), whose sum is σ = 130412430. Its totient is φ = 43470808.

The previous prime is 86941609. The next prime is 86941643. The reversal of 86941618 is 81614968.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 82391929 + 4549689 = 9077^2 + 2133^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21735403 + ... + 21735406.

Almost surely, 2^86941618 is an apocalyptic number.

86941618 is a deficient number, since it is larger than the sum of its proper divisors (43470812).

86941618 is a wasteful number, since it uses less digits than its factorization.

86941618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43470811.

The product of its digits is 82944, while the sum is 43.

The square root of 86941618 is about 9324.2489241761. The cubic root of 86941618 is about 443.0056237365.

The spelling of 86941618 in words is "eighty-six million, nine hundred forty-one thousand, six hundred eighteen".